What is the value of a 1977 H series 5 dollar bill with the last 4 serial numbers mismatched?

To clear things up, "H" isn't the series letter, it's the indicator letter of the Kansas City Federal Reserve District that distributed the bill*

If the serial numbers don't match, you almost certainly have what's called a stuck-counter error. Depending on the bill's condition it could retail for $100 to $200.

How it happens:Serial numbers are printed by two mechanisms that work like the mechanical odometer on an old car. They're both supposed to click once per bill, but every so often one gets stuck and lags behind which causes the numbers to get out of synch.

(*) FWIW, the bill wasn't printed in Kansas City. Back in 1977 all paper money was printed in Washington. Different print runs would be made depending on which Fed district orders the bills.